﻿using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
    
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            string name = TextBox1.Text;
            string password = TextBox2.Text;
            string constr = "server=.;uid=sa;password=123456;database=Student_db";
            SqlConnection con = new SqlConnection(constr);
            con.Open();
            string sql = "select * from StudentInfo where stu_name=@name and password=@pwd";
            SqlParameter[] pars =
            {
                new SqlParameter("@name",name),
                new SqlParameter("@pwd",password)
            };
            SqlCommand cmd = new SqlCommand(sql,con);
            cmd.Parameters.AddRange(pars);
            SqlDataReader sdr = cmd.ExecuteReader();
            if (sdr.Read())
            {
                Literal1.Text = "登陆成功<a href='WebForm3.aspx'>跳转到登陆页面 </a>";
            }
            else
            {
                Literal1.Text = "登陆失败用户名或密码错误";
            }
        }
    }
}